Recent content by vectordog

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    Undergrad Edison's Electric Companies: Understanding DC Processes

    Coal fired steam engines was what I was wondering. Thanks. My class was watching a video on Tesla, and we were just curious.
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    Undergrad Edison's Electric Companies: Understanding DC Processes

    Can anyone describe for me the process that edison originally used to produce DC when he built his original electric companies?
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    Ap answer? for gravity question

    That's what I thought, too. AP is famous for their typos on the Physics test. I'm guessing this is one of them.
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    Ap answer? for gravity question

    Looking at an old AP multiple choice test, I found this question and answer: A satellite of mass M moves in a circular orbit of radius R at a constant speed v. Which of the following must be true? One of their "true" answers states: The net force on the satellite is equal to MR and is...
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    Energy stored in a bow and arrow

    THANKS! I feel a little stupid now.
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    Energy stored in a bow and arrow

    The following was a question from a Work/Energy high school test. "3. An archer is shooting at a hay bale target. The archer pulls back on his bow string with 500 N of force to draw it back a distance of 80 cm. He releases the string, and the arrow (m= 1 Kg) flies straight to its target...